Printers quoin



(No Model.)

J. N. 0; HANKINSON.

4 PRINTER'S QUOIN.

No. 312,845. Patented Feb. 24, 1885.

' mllqwai I l V I IIB/ETELDR ,ozwmwrw WaflO, Hm

tion taken at x a, Fig. 1.

llhvrrnn time Parent rrren.

JOHN N. O. HANKINSON, OF HARRISBURG, PENNSYLVANIA.

PRINTERS QUOEN.

SPECIFICATION forming part of Letters Patent No, 312,815, dated February2 1-, 1885.

(No model.)

To all whom, it may concern.-

Be it known that 1, JOHN N. 0. IIANKIN SON, a citizen of the UnitedStates, residing at Harrisburg, in the county of Dauphin and State ofPennsylvania, have invented certain new and useful Improvements inPrinters Quoins; and I do hereby declare that the following is a full,clear, and exact description of the invention, which, with the aid ofthe accompanying drawings, will enable others skilled in the art towhich it appertains to make and use the same.

The main object of my improvement is to secure the quoins in positivelocked position after the form has been tightened properlyin thefurniture. For attaining said object a means is employed to serve as astop or check to prevent the backward travel of the inclines of thepaired quoins, that may be readily inserted on or between them andremoved intact for repeated use. My quoins are therefore provided withsuitable holds for receiving a ready check-piece for said purpose whichwill fit any two of a lot of quoins, so that no particular care need betaken to attach them. My quoins are also peculiarly constructed to beguided upon each other, and to be limited in their travel or throw bylugs in slots.

In the accompanying drawings, Figure 1 represents a perspective view ofa pair of my quoins in locked position. Fig. 2 is a top view of one ofmy quoins. Fig. 3 is a face View of the same. Fig. 4 is a transversesee- Fig. 5 is a view of check-piece. Fig. dis a view of the key forlocking. Fig. 7 is a view of tool for removing check-piece.

Similar letters denote similar parts in the several views.

G G represent a pair of my quoins, each having a wedge-form bodygradually tapered from the butt m to the blunt point at. The butt hasthe lug a on its face, and the taper point a has in it a longitudinalslot, 12, made to admit lug a, through it loosely; but said lug, afterinsertion into said slot, may be struck up, thus permanently attachingthe quoins together in pairs, said slot being a little fla r ingoutwardly, and recessed to present a bearing for the head of lugparallel with the face of the quoin, as shown in Fig. 4.. I do not,

however, limit myself to making the quoins in permanent pairs, as anytwo from a lot may be put together in use instantly. The quoins areprovided with teeth A, offset from their meeting lines or faces, that akey, K, with blank bit H, may be applied to said teeth for moving thequoins upon each other to tighten the form, or undo the same by wrenchwith said key. Adjacent to said teeth A, and front ing the spacesbetween them, are notches S, right on the meeting line of the quoins.Said notches correspond with each other, being equally distant, so thatwhen they are opposite each other a series of holes will be left betweenthe quoins. A check-piece, B, of staple form, or provided with legs G tostep into said holes, serves as a positive lock for the quoins. Saidcheck-piece, when inserted, comes level at top with the upper edge ofthe quoins, and the loop end of it is accessible, as shown in Fig. 1, sothat it may be picked out conveniently by a hook, D, somewhat like ashoe-buttoner. The quoins cannot undo by concussion arising from theaction of the press, and cannot be unlocked, even by the key, until thecheck-piece is removed.

I am aware that several equivalent devices or forms of check-piece maybe employed, as an ordinary tinners rivet may be dropped into said holesto lock the quoins, but not with equal facility in unlocking; also, thata serrated plate laid in the recess between the opposite racks A A willstop the quoins, but

not so exactly and so efficiently as the device herewith submitted.

I claim 1. Apair of quoins having their thinner ends provided withlongitudinal slots b, and with lugs a on their butt-ends for guiding andlimiting the movement of the quoins upon each other, substantially asand for the purposes shown and described.

2. A pair of quoins having parts, substantially as described, adaptedfor guiding their movement upon each other, and provided with notches orholds thereimin combination with a check-piece adapted to apply in saidholds and positively lock the quoins against undoing, substantially asand for the purposes set forth.

3. A pair of quoins, G G, provided with ICO limitingguides at b, Withteeth A for holds, hooked instrument, D, for removal, substanwhereby aflat bit of key, K, may advance and tially as set forth. retract thequoins upon each other, and with r T T co-operating notches or holds S,in combina- JOHN HALKINSOI" 5 tion with a cheek-piece, B, of suitableform Witnesses:

to apply in said notches to stop the movement J. GAL. DREWETT, of theqnoins, and to be readily seized by a D. O. MAURER.

